Multicolor rotary printing press



July 26, 1932. H M BARBER 1,868,963

MULTICOLOR ROTARY PRINTING PRESS Filed Feb. 7, 1930 5 Sheets-sheet 1INVENTOR 4V-d zr. M

ATTORNEYS July 26, 1932. l H. M. BARBER 1,853,963

MULTICOLOR ROTARY PRINTING PRESS Filed Feb. '7, 1930 I5 SheeS--Sheerl 2lNVENTOR ATTORNEYS July 26, 1932. H. M. BARBER MULTICOLOR ROTARYPRINTING PRESS Filed Feb. '7, 1930 5 Sheets-Sheet 3 INVENTCR ATTORNEYSPatented "July 26, 19.32

UNITED STATESA PATENT OFFICE HOWARD M. BARBER, OF IPAWCATUCK,CONNECTICUT, ASSIGNOR TO C.v B. COTTRLL SONS COMPANY, F WESTERLY, RHODEISLAND, A CORPORATION OF DELAWARE MULTIGOIOR ROTARY PRINTING PRESSApplication led February 7, 1930. Serial No. 426,577.

My invention comprises one or more impression cylinders of apredetermined diameter and one orgmore plate cylinders of apredetermined diameter, the impression cylinder or cylinders being ofthe same diameter as the plate cylinder or cylinders or a multiplethereof. y

My invention further comprises means whereby the sizes of either theplate or impression cylinders, or both, may be readily and' easilychanged without rebuilding the press, by the employment of cylindershell members of varying'- diameters removably -secured to the cylindershaft members.

A practical embodiment of my invention is shown in connection with athree color rotary web printingpress sueh as that shown, described andclaimed in my copending application, Serial No. 318,506, filed November10th, 192s.I

3 Fig. 1 represents a detail side elevationil ylustratingrcoacting plateand impression cylinders of the same diameter. y

Fig. 2 represents a similar view illustrating the impression cylindersas twice the diameter of the plate cylinders.

Fig. 3 represents a detail side View of one vof the cylinders (in thepresent instance a plate cylinder) on an enlarged scale, a por- 0 tionof the longitudinally divided cylinder shell member being broken away tomore clearly illustrate the parts inside the same.

Fig. 4 represents an end viewof the cylinder. 1

Fig. lrepresents a longitudinal central Fig. 6 represents a longitudinalsection I0 taken in the planes of the lines VI-VI of Fig. 4, looking inthe direction of the arrows.

The main frame of the printing press is denoted by 1. The three platecylinders illustrated are shown as comprising shaft members 2, 3 and ito which in Fig. 1 shell members 5, 6 and 7 respectively of one diameterare removably secured and to which in Fig.

2 shell members 8, 9 and 10 respectivel .Y of another diameter areremovably secure f The two impression cylinders illustrated are denotedYas comprising shaft members 1'1 and 12 to which shell members 13 and 14of a predetermined diameter are removably secured. These impressioncylinder shaft members 11 and 12 are shown as mounted in hori- Zontallyadjustable bearings 15 and 16. The shell members for the plate andimpression rcylinders are shown as longitudinally di vided forfacilitating the changing of the shell members of one Adiameter to shellmembers of another diameter. y

The impression cylinders are shown of the same diameter as the platecylinders in Fig. 1 and are shown as twice the diameter of the platecylinders in Fig. 2 but it is to be understood that these are only twoexamples of the,relative sizes of the plate and impression cylinders asthe impression cylinders may not only be the same diameter as the platecylinders but also any multiple thereof. 'v

In Fig. 1 the upper ,plate cylinder gear 17 is shown as being drivenfrom the upper impression cylinder gear 18 and the lower plate cylindergears 19 and 20 as being driven from the lower impression cylinder gear:2-1. In Fig. 2 the upper plate cylinder gear 22 is shown as beingdriven from the upper impression cylinder gear 17 and the lower platecylinder gears 23, 24 as being driven from the lower impression cylindergear 21.

The upper and lower impression cylinder gears 17 -and 21 are connectedfor synchronous action through the registering gear 25, the shaft 26 ofwhich is adjustable horlzontally alongslots 27 in brackets 28,`carriedby the main frame 1.

As the means shown herein for securing the shell members to their shaftmembers is the same for both the plate and impression cylinders, I willdescribe specifically only one of said means, viz., the means forsecuring the plate cylinder shell member 5 to its shaft member 2. Theshaft member 2 is provided with a sleeve 29 keyed thereto, which sleevehas a flange 30 projecting laterally therefrom. rhis flange has radialslots 31 at i11- tervals around the same. Between the walls of each slota swinging clamp bolt 32 is pivoted at 33, the inner end of which boltmay be provided with a stop 34 arranged to be brought into engagementwith the sleeve 29, to limit the releasing movement of the bolt. Acurved shoe 35 is loosely mounted on the bolt between the nuts 36 and anexpansion spring 37. j

The longitudinally divided shell member 5 is provided at each end with aflange 38 concentric with the longitudinal axis of the shaft member 2,the inner wall of which flange lits the peripheral face of the sleevevflange 30. This shell member flange 38 has radial slots 39 forming4extensions of the radial slots 31 in the sleeve flange for receiving theclamp'bolt 32 when it is swung into its locking position with the shoe35 in engagement with the outer wall of the said flange 38. Thetightening of the clamp bolt nuts 36 will serve to lock the dividedshell member to the shaft member.

To properly position the sections of the divided shell member on theshaft member I provide the shaft member sleeve with radial dowels 40,arranged to enter holes 41 in the shell member flange 38.

lVhile I have shown four shell clamping and four shell positioningdevices for each cylinder, it is obvious'that the number may be variedto suit different requirements.

It will be understood that the divided shell member flange 38 is locatedthe same distance kfrom the axis of the shaft member on all of the shellmembers of different diameters so that they may be readily interchangedto y form cylinders of various diameters.

The impression cylinder 13 is shown as moved into position to coact withits plate cylinder 5 or 8 by the following means:

A hand Wheel 42 has its cross shaft 43 provided with a bevel gearconnection 44, 45 at each side of the machine frame with a screw shaft46 engaging the bearing 15 which is slidable along a guideway 47. A setscrew 48 is arranged in position to engage the bearing 15 and lock it inits adjusted position.

The impression cylinder 14 is shown as.

-gear 58 anc1 in Fig. 2 as a mounting for the change gear 59. The meanswhich I have shown for rocking the supports 56 to bring the selectedchange gear into driving connection with its impression cylinder gear 21is shown as a hand wheel 60, the cross shaft -61 of which has a bevelgear connection 62, 63

with a worm shaft 64, the worm 65 meshing with a gear'segment 66 carriedby the rocking support 56.

The drive for either the change gear 58 or the change gear 59 is shownas a gear 67 on the shaft 68 which meshes with a gear 69 on the shaft70. A gear 71 on this shaft 70 meshes with a gear 72 on the stud shaft57 y The rocking support 56 may be locked in its adjusted position bymeans of a bolt 73 projecting through an elongated slot 74; ya lockingnut 75 being provided for said bolt.

The web 76 is shown as passing 'around suitable rollers 77, 78, 79, toand around the impression cylinder 13. From thence the web is shown aspassing around the roller 80 to and around the impression cylinder 14.From thence the web is shown as passing around the rollers 81 and 82 tothe delivery point.

The above described means for adjusting the impression cylinders alonghorizontal planes to bring them into .coaction with their platecylinders forms part of the subject matter of my copending applicationSerial No. 318,506, hereinbefore referred to. Also, the changel geardevice for driving the printing mechanism forms part of the subj ectmatter of the said copending application.

From the above description it will be seen that the sizes of the platecylinders or the impression cylinders, or both, may be readily changedso long as the impression cylinders are of the same diameter as theplate cylinders or a multiple thereof.

It is evident that various changes may be resorted to in theconstruction, form and arrangement of the several parts withoutdeparting from the spirit and scope of my invention, and hence I do notintend to limit myself to the particular embodiment herein shown anddescribed, but

What I claim is 1. In a multicolor rotary printing press, plate andimpression cylinders, the impression cylinders being the same diameteras the plate cylinders or a multiple thereof, each impression cylindercomprising a shaft member, a longitudinally divided shell member of apredetermined diameter, said shell member being provided with concentricflanges at its ends having holes therein, dowels carried by the shaftmember adapted to enter said is holes to position the shell member on.the shaft member, and clamping bolts hinged to the shaft member andprovided with shoes adapted to be engaged with said flanges forlslicuring the shell member tothe shaft mem- 2. In afmulticolor rotaryprinting press,

' plate and impression cylinders, the impression cylinders being thesame diameter as the plate cylinders or a multiple thereof, each platecylinder comprising a shaft member, a

longitudinally divided shell member of a predetermined diameter, saidshell member being` provided with concentric anges at its vends havingholes therein, dowels carried by the shaft member adapted to enter saidholes toposition the shell member on the shaft member, and clampingbolts hinged to' the shaft member and provided with shoes adapted to beengaged with said flanges for secur- V ing the shell member to the shaftmember.

3. In a multicolor rotary printing press, plate and impressioncylinders, the impression cylinders being the same diameter as the platecylinders or a multiple thereof, each 3 plate and impression cylindercomprising a,4 shaft member, a longitudinally divided shell member of apredetermined diameter, said shell member being provided with concentricflanges at its ends having holes therein,

dowels carried by the shaft member adapted to enter said holes toposition the shell member on the shaft member, and clamping bolts hingedto the shaft member and provided with shoes adapted to be engagedwithsaid 40 flanges for securing the shell member to the shaft member. Av

In testimony, that I claim the foregoing as m invention, I have' signedmy name this fi h day-of February, 1930.

HOWARD M. BARBER,

